Filling of gas bottles is a part of a product line where the bottles are moved by pneumatic cylinders
• Draw the position-sequence diagram.
• What kind of switches would you use (signals from actuators). So what is a type ofthe switch?
• If there is a logic controller controlling it, how many inputs and outputs it needs? What are they?
The function of the system:
Cylinder A pushes a new bottle and at the same time the previous one onto the plate of cylinder C, which is in the front position at first.
Cylinder B fastens and centralizes the bottle.
Cylinder D pushes the filling valve onto the valve ofthe bottle and when the pressure is high enough in the bottle it returns back.
Cylinder E pushes the indicator near the bottle and ifthere is no gas escape, the sequence can be continued.
